We use interior printing technology, colour and ink is inside and will not fade. There are very small hollow holes in the surface for anti-slip.This type of cotton is widely used in fruits package, it is food grade material, non-toxic and odor.One side is the ocean and fishing pattern, there are many colourful fish with the letters of the alphabet a-z, it is good for preschool learning.The other side is the zoo, there are tigers, panda bears, elephant, giraffe, bear, zebra ... With children play. Has the letters of the alphabet, too. Can be used for baby crawling, daily rest, children play, outdoor picnic or fishing, summer camp.The colour and design of the actual objects may vary slightly from the images due to different computer screen and different manufacturing lots.The double-side baby crawl mat has been engineered to provide your baby with a safe , non toxic,educational and eco friendly . Even when your little one has mastered walking, they will love to play on this mat. It is designed to be 100% safe . Create a safe and great fun space for your child. It is made of earth friendly materials, excellent cushioning with fun designs. Its great for use while playing video games, watching movies, and even as a tent floor when camping. Use them in your kids room, play room, or in the living room to create a safe and fun play space for your kids. Cushioned surface ensures a soft landing for rolling, tumbling and falls perfect for reducing noise and impact and a great insulator on all floor surfaces.Very easy to clean. Simply wipe with wet cloth.Themes are different.